Spas with salt room

Karjalohja, Uusimaa

Lakeside resort spa on Lohjanjärvi in Karjalohja, about an hour from Helsinki, with a day pass, thermal pool, salt room and restaurant.

Naples, Florida

Day spa in Central Naples with a salt cave for halotherapy, plus massage, facials and yoga classes; walk-ins welcome but reservations recommended.

Miami, Florida

Hotel spa and fitness center in Brickell/Downtown Miami offering massage, salt room, meditation pods and group fitness, open to day guests and members.

Nashville, Tennessee

A walk-in salt room in Smyrna, just outside Nashville, offering halotherapy sessions plus reflexology and lash services for adults.

Austin, Texas

A downtown Austin day spa built around a salt room, open to walk-ins and adults only, with hours that shift daily.